Considered by some authors to be a subspecies of Eurasian Jay (Garrulus glandarius). References See References. Files: More Information Articles about the Plain-crowned Jay If you would like to read any articles about the Plain-crowned Jay... Show Articles (0) No Pictures of Plain-crowned Jay If Birdpedia has no pictures of Plain-crowned Jay or you would like to see more, then try the following... From BING (0) No Videos of Plain-crowned Jay If Birdpedia has no videos of Plain-crowned Jay or you would like to see more, then try the following.. From BING (0)